Paper folding machine



Nov. 24, 1931. o. KLEINSCHMIT ET AL 1,832,988

PAPER FOLDING MACHINE Filed June 9. 1930 2 Sheets-Sheet l WVEWTOPS 2Sheets-Sheet 2 In I l I l I1 llll |lv||| NOVQ 24, 1931.

ATTOR/VIFYS'.

Patented Nov. 24, 1931 UNITED STATES PATENT ,OFFICE.

GERMANY, AssIGNoRs To ennnunnn BREHMER mscnmEN-mmm, or LEIIPZIG-PLAGWITZ, GERMANY Application filed June 9, 1930, Serial No.

This invention relates to improvements in paper folding machines andparticularly to that class employing buckling plates. or

a guides as a part of the machine for effecting one or more folds of thesheet of paper by means of the well known buckling process.

guides is or are removed from the machine and deflecting devices aresubstituted therefor so that the sheet of paper passes directly throughand is unaffected by the buckle folding'rollers from whence it may beled to the ordinary folding roller and knife mecha- IllSIIl. I I

It has however been proposed to pivotally support the buckling plates orguides of such buckle foldingmechanism whereby the same ma be held outof the way and deflecting evices substituted therefor for the purposedescribed.

The present invention has for its object to provide improved meanswhereby the sheet to be folded may be deflected into the succeeding feedor folding rollers without any auxiliary being applied to the machine orthe removal of the'buckling plates or guides either bodily or byswinging the same out of the path of the feeding mechanism.

With this object in view according to the present invention the stopcommonly employed to limit the travel of the sheet within the bucklingplates or guides is so constructed and so mounted with respect to thesaid guides that it is adapted to act as a deflector and may be suitablypositioned to deflect the sheet so that the same does not pass betweenthe buckling plates but is demechanism.

flected into or between the buckle folding rollers and from thence fed,if desired, to the ordinary folding rollers and knife The inventionfurther consists in the im- 'roved construction and adaptation of theuckling plates or guides in order that this a loop Berna FOLDING momma I460,024, and in Germany September 17, 1929.

dual function of the stop aforesaid may be attained as hereinafterdescribed.

A construction according to the invention is illustrated by way ofexample in the accompanying drawings in which similar referencecharacters relate to like parts in. all the figures and in which Figurel is an elevation of part of a folding machine showing two sets ofbuckling plates or guides. Y

Figures 2 and 3 are similar views to a larger scale showing one setof'the buckling plates or guides of Figure 1 with alternative positionsof the stop and Figure 4 is a plan view of a portion of one set ofbuckling plates and their co-acting stop, also to a larger scale thanFigure 1.

It will be appreciated that as is usual in this class of machine thesheet a is fed from the feed table I) by the rollers a and d into thefront edge of the adjustable stop 6 whereby or buckle f is formedwhichis seized by the rollers d and 9 so that the first fold in thepaper sheet is formed in the well known manner. The folded sheet is thenpassed by the rollers d and 9 into the buckling plates h and theoperation is repeated so that a s'econ fold is formed and so .on.

Assuming now it is desired to dispense with 'the second bucklefoldingoperation and that the once folded sheet is desired to be ledeither directly to the stack or to the ordina folding roller and knifemechanism for e fecting a transverse fold according to this inventionthe stop m of the buckling plates h is so constructed and so mountedwith respect to the said plates that it may be caused to travel in itsguides until it almost contacts with the roller 9 asshown in Figures 1and 3 and closes the mouth of the guide pocket so that the folded sheetis deflected and passes directly between the rollers g and n asindicated by the arrowed line.

In order that any stop such as e or m associated with the bucklingplates may'fulfil the dual function of limiting the travel of the sheetwithin the buckling plates and also actin as a deflector, each stop,which is carv 2 r a 1,832,988

ings p fixed to'the 'de frames is formed with depending tee g that areadapted to the slots 1' formed in the guide frames igure 4) The upperslots of the buckling plates or guides extend longitudinally right tothe front ends of the plates which are secured to the transverse membert of the guide frame to which the bridge-bar u is screwed or otherwisesecured. V m In order to prevent the teeth 9 striking against the ed '0of the-transverse member t of the guide ame in the course of the travelof the stop to its lowermost position a lifter w provlded with aninclined surface is I mounted on each side of the guide frame so thatthe inclined edge w" of the stop rides thereon and thereby raises theteeth g above the upper surface of the transverse member t, the frontface a: of the stop coming into con- 90 tact with the bridge-bar u tolimit the downward travel of the stop whilst the teeth 9 pass beneaththe bridge-bar u as clearly seen in Fi re 3. v

Iii we chili l d ng hin f h d 1. apapero mac'eotekin described thecombination with the feed rollers buckling rollers and buckling framesforming guide ets of means adjustabl mounted said ucklin frames andnorma 3 1y limiting the travel 0 a paper sheet from said feed rollerswithin said guide pockets and alsoacting as a deflector to prevent theentrance of a paper sheet from said feed rollers to said guide pockets,substantially as a descri 2 A paper folding machine as claimed in claim1 wherein said adjustably mounted means constitute a stop provided withteeth that engage in slots formed in the buckling n frame.

3 A pa 1' folding machine as claimed in 01am 1 w erein lifters havinginclined surfaces are provided on each of the buckling frames for the pudescribed.

45 In testimony whereof we aflix our signa- OSCAR KLEINSCHIMIT. MAXAPITZSCH. ERNST 'FELSCH.

